What is the difference between positive and negitve geotropism?

Answer 1

Geotropism (also called gravitropism) is the turning or growth movement by a plant or fungus in response to gravity. Roots show positive geotropism (grow toward gravity - down) and stems show negative geotropism (grow away from gravity - up).

Answer 2

The movement of plant parts in response to gravity. Positive geotropism causes roots to grow downward; negative geotropism causes stems to grow upward.

Answer 3

The turning or bending movement of an organism or a part toward [or away from] an external stimulus, such as light, heat, or gravity.

(quoted from the related link)

Answer 4

Positive tropism means that an organism is growing toward something that is beneficial.

Negative tropism is growing away from something that is not beneficial.